4.6 Article

Comprehensive Study of the Topological Surface States through Ultrafast Pump-Probe Spectroscopy

Related references

Note: Only part of the references are listed.
Article Chemistry, Physical

Low-temperature ultrafast optical probing of topological bismuth selenide

Prince Sharma et al.

Summary: This study investigates the optical response and temperature-dependent excited-state carrier dynamics in a flake of Bi2Se3 cleaved from its single crystal. The findings confirm the existence of optical transitions and reveal unseen transitions in the bismuth selenide. Temperature-dependent excited-state dynamics and the presence of Moss-Burstein shift and Pauli blocking effect in the topological insulator are also discussed.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

Article Optics

Ultrafast bipolar conductivity driven by intense single-cycle terahertz pulses in a topological insulator Bi2Se3

L. Luo et al.

Summary: Researchers successfully measured the ultrafast terahertz conductivity of a 50 nm thick topological insulator Bi2Se3 at low temperature using a THz pump and THz probe spectroscopy scheme. They found that the surface and bulk charge carriers have distinctly different scattering rates and relaxation times. Additionally, they demonstrated the THz pump field-dependent excitation of surface and bulk spectral weights, indicating one of the optimal excitation conditions for generating the most charge carriers from the topology-protected surface state relative to the bulk.

JOURNAL OF OPTICS (2021)

Article Nanoscience & Nanotechnology

Clarifying Ultrafast Carrier Dynamics in Ultrathin Films of the Topological Insulator Bi2Se3 Using Transient Absorption Spectroscopy

Yuri D. Glinka et al.

Summary: Using transient absorption spectroscopy, researchers demonstrate that ultrafast carrier dynamics in ultrathin Bi2Se3 films are driven by two-photon excitation and polar optical phonon cascade emission, with the relaxation dynamics being influenced by the Dirac surface states and the presence of Dirac cones with different energies. The results suggest that a specific Dirac surface state acts as a valve, affecting the relaxation of electrons, resulting in detectable free carrier absorption.

ACS PHOTONICS (2021)

Article Multidisciplinary Sciences

Emergent topological fields and relativistic phonons within the thermoelectricity in topological insulators

Daniel Failde et al.

Summary: The research demonstrates that topological insulators can maintain time reversal symmetry under the influence of relativistic phonons, and their intrinsic topological field can modulate the Berry curvature of the bands, playing a key role in the thermoelectric effect. These findings open up new possibilities for experimental applications of the topological effect.

SCIENTIFIC REPORTS (2021)

Review Physics, Applied

Magnetic topological insulators

Yoshinori Tokura et al.

NATURE REVIEWS PHYSICS (2019)

Article Materials Science, Multidisciplinary

Electronic structure of the PLD grown mixed phase MoS2/GaN interface and its thermal annealing effect

Arun Barvat et al.

CURRENT APPLIED PHYSICS (2018)

Review Physics, Multidisciplinary

Topological antiferromagnetic spintronics

Libor Smejkal et al.

NATURE PHYSICS (2018)

Review Physics, Multidisciplinary

The physics of quantum materials

B. Keimer et al.

NATURE PHYSICS (2017)

Article Physics, Applied

Molecular structure of vapor-deposited amorphous selenium

A. H. Goldan et al.

JOURNAL OF APPLIED PHYSICS (2016)

Article Physics, Applied

Optical properties of Bi2Se3: from bulk to ultrathin films

M. Eddrief et al.

JOURNAL OF PHYSICS D-APPLIED PHYSICS (2016)

Article Physics, Applied

Acoustic phonon dynamics in thin-films of the topological insulator Bi2Se3

Yuri D. Glinka et al.

JOURNAL OF APPLIED PHYSICS (2015)

Article Multidisciplinary Sciences

Ultrafast electron dynamics at the Dirac node of the topological insulator Sb2Te3

Siyuan Zhu et al.

SCIENTIFIC REPORTS (2015)

Article Physics, Applied

Temperature-dependent carrier-phonon coupling in topological insulator Bi2Se3

Yi-Ping Lai et al.

APPLIED PHYSICS LETTERS (2014)

Article Spectroscopy

Ultrafast electron dynamics in the topological insulator Bi2Se3 studied by time-resolved photoemission spectroscopy

J. A. Sobota et al.

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA (2014)

Review Optics

Topological photonics

Ling Lu et al.

NATURE PHOTONICS (2014)

Article Physics, Applied

Ultrafast carrier dynamics in thin-films of the topological insulator Bi2Se3

Yuri D. Glinka et al.

APPLIED PHYSICS LETTERS (2013)

Article Materials Science, Multidisciplinary

Ultrafast photodoping and effective Fermi-Dirac distribution of the Dirac particles in Bi2Se3

A. Crepaldi et al.

PHYSICAL REVIEW B (2012)

Review Physics, Multidisciplinary

Topological materials

Binghai Yan et al.

REPORTS ON PROGRESS IN PHYSICS (2012)

Review Physics, Multidisciplinary

New directions in the pursuit of Majorana fermions in solid state systems

Jason Alicea

REPORTS ON PROGRESS IN PHYSICS (2012)

Article Chemistry, Multidisciplinary

Growth of Topological Insulator Bi2Se3 Thin Films on SrTiO3 with Large Tunability in Chemical Potential

Guanhua Zhang et al.

ADVANCED FUNCTIONAL MATERIALS (2011)

News Item Nanoscience & Nanotechnology

NANOELECTRONICS A topological twist for transistors

Qi-Kun Xue

NATURE NANOTECHNOLOGY (2011)

Article Physics, Multidisciplinary

Nonlinear Optical Probe of Tunable Surface Electrons on a Topological Insulator

D. Hsieh et al.

PHYSICAL REVIEW LETTERS (2011)

Review Physics, Condensed Matter

Three-Dimensional Topological Insulators

M. Zahid Hasan et al.

ANNUAL REVIEW OF CONDENSED MATTER PHYSICS, VOL 2 (2011)

Article Multidisciplinary Sciences

The birth of topological insulators

Joel E. Moore

NATURE (2010)

Article Physics, Multidisciplinary

Observation of topological order in a superconducting doped topological insulator

L. Andrew Wray et al.

NATURE PHYSICS (2010)

News Item Physics, Multidisciplinary

TOPOLOGICAL INSULATORS The next generation

Joel Moore

NATURE PHYSICS (2009)

Article Instruments & Instrumentation

Kramers-Kronig constrained variational analysis of optical spectra

AB Kuzmenko

REVIEW OF SCIENTIFIC INSTRUMENTS (2005)